#include <stdio.h>
#include "my_add.h"
#include "my_sub.h"

int main()
{
    int a = 10;
    int b = 20;
    
    int result = Add(a, b);
    printf("%d\n", result);


    result = Sub(a, b);
    printf("%d\n", result);

    return 0;
}
